Battery hand lamp



Feb. 13, 1923.

. 1,445,193 E.ALSCHULER. M

BATTERY HAND LAMP.

FILED JUNEZI, 1920.

Patented Feb. 13, 19213.

Kiwi-TED STATES FATENT ERNEST ALSCHULER,

OF NEW YORK, N. Y.

BATTERY HAND LAMP.

Application filed June 21,

T 0 all whom it may concern Be it known that I, ERNEST ALsoHULER, acitizen of the United States, and residing at New York, New York, haveinvented the new and useful Improvement in Battery Hand Lamps, of whichthe following is a specification.

This .invention relates to battery hand lamps such as may be lighted bythe manual operation of the switch on the casing, while thelamp is heldin the hand.

In many types of construction such a lamp is provided with a casing ofinsulating material provided with metal fittings which may be includedin the lamp circuit. Such lamps are also usually "provided with a switchon the casing which may be closed by the operation of a push button orother moving part on the exterior thereof. Such lamps are subject to thedisadvantage that when they are carried in a tool box or similarreceptacle along with a number of other articles, the lamp circuit isliable to be closed accidentally either by operation of the switch or byestablishing metallic contact between the various fittings andconsequently the battery is liable to be exhausted unnecessarily.

One of the obj ects of this invention, therefore, is to provide a lampconstruction which will insure against the accidental discharge of thebattery.

In such constructions it is usually necessary to insulate some of themetallic fittings, and for this purpose the fitting on the upper orreflector endmay be insulated.

Another object of this invention, therefore, is to provide novel meansfor insulating the lamp circuit, particularly at the reflector end ofthe casing.

Another object is to provide a lamp construction which is simple andcheap to manufacture and reliable-in operation.

Further objects will appear from the detailed description taken inconnection with the accompanying drawings, in which:

Figure 1 is a sectional view of a hand lamp embodying this invention;

Figure 2 is an enlarged sectional detail of the insulating supportforthe reflector;

Figure 3 is an enlarged sectional detail of the end cap construction;and,

Figure 4 is a sectional view of the lower end of the lamp showing theend cap partly unscrewed, so as to break the lamp-circuit.

Referring now to the accompanying 1920. Serial N0. 390,509.

drawing, 1 designates the casing, which in th1s case 1s shown as oflnsulatingmaterial containing a battery 2, one of whose termi- The upperend of the reflector 4- lating ring 10. The insulating ring 10 isadapted to engage the reflector 4 at an intermediate portion thereof soas to support it and center it in the casing. The upper end of thereflector 4, where it bears against the lens 5 is of less diameter thanthe ring 7, so as to be separated therefrom for insulating purposes. Thehousing 6 is screwed on to the sleeve 11 on the upper end of the casingin the usual manner.

A switch 12 which may be such as has been described and illustrated inPatent No. 1287262, December 10, 1918, is mounted on the casing. Aconductor 13 connects the switch 12 with the reflector 4. This conductorpasses upwardly on the inside of the casing, to which it may be attachedby a rivet 14 at the upper end, and extends beyond the upper end of thecasing 1 a sufficient distance so that when the housing 6 is screwed inplace on the sleeve 11, the conductor '13 will pass up inside of theinsulating ring 10 to make contact with the reflector 4. The head of therivet 14 may be counter sunk in the casing 1, so as to avoid contactwith the sleeve 11. a

It will be seen that as the housing 6 is screwed down upon the sleeve 11the conductor 13 will be forced upwardly between the reflector 4 and theinsulating ring 10 and will, therefore, be sustained in good contactwith the reflector by the ring 10. It will also be seen that the outsidemetallic fittings 6, 7 and 11 are entirely insulated from the circuit.

From the switch 12 a conductor 15 passes downwardly to the end of thecasing where it is turned over, so as to contact with, and being held bythe flange 16 on the lower screw sleeve or fitting 17.

The usual metallic end cap 18 may be provided to be screwed on to thesleeve 17 \Vithin the cap 18, but insulated therefrom by means of theflanged insulating washer which may flange 21 will contact with theflange 16; thereby completing the circuit from the battery to the switch12.

It will be seen that since the lamp circuit is completed through thecontact between the flanges 16 and 21, said circuit may be opened byunscrewing the cap 18, so as to separate those flanges. It will also beseen that with these flanges so separated, it will be impossible tolight the lamp by manipulation of the switch 12 or by any accidentalcontact which may establish an external circuit between any of theoutsidemetal fittings.

It is further evident that the reflector 4, being clamped between thelens 5 and the ring 10, is completely supported in the housing 6, andthat when said housing is unscrewed from the sleeve '11 the circuitbetween the reflector and the strip 13 will be broken, thereby renderingit impossible to light the lamp by manipulation of the switch 12, or byestablishing a circuit between the end fittings.

It will be seen, therefore, that this invention accomplishes its objectsin providing a lamp structure wherein the external metal fittings may beso insulated as to make it impossible to close the battery circuit byestablishing metallic contact therebetween. It will also be noted thatthis is accomplished by providing novel means for insulating andsupporting the reflector in the casing and by novel means ofestablishing a circuit therewith all insulated from the externalfittings. It will further be noted that by means of the circuit openingdevice, in the end cap, the establishment of any accidental circuitexhaust the battery is rendered impossible;

It is obvious that various changes may be made in the details ofconstruction, within the scope of the appended claims, withoutdepartingv from the spirit of this invention; it is, therefore, to. beunderstood that this invention is not to be limited to the specificdetails shown and described.-

Having thus described this invention, what is claimed is: v

1. In a battery hand lamp having a battery receiving casing providedwith a movable cap, a lamp in the casing, a spring in the casingadapted-to support and contact with the battery, and a circuit-closingswitch on the casing adapted to normally connect the lamp with thebattery through the spring, a fixed conductor extending along the casingand connected with the switch and a spring retainer mounted in butinsulatedfrom the cap and having a circumferential flange taking overand retaining said spring and making connection with said switch throughsaid conductor.

2.. In a battery hand lamp having a battery receiving casing. providedwith a movable cap, a lamp in the casing, a spring in the casing adaptedto support and contact.

with the'batt ery, and a circuit-closing switch on the casing adapted tonormally connect the lamp with the battery through the spring, a metalrim on the casing and connected with the. switch, and a spring retainermounted in but insulated from the.

cap and having a circumferential flange tak- 7 tween its rim and itsnipple.

4. In a battery hand lamp having a battery receiving casing providedwith a metal part, a metal reflector in the lamp circuit and a lensagainst which the reflector bears, a metal support secured to saidcasing part, an insulating member seated in said support and providing aseat for the reflector between its rim and its nipple, and a conductorwithin'said insulating member adapted to contact with the reflector. Y

5. In a battery hand lamp having a bat tery receiving .casing providedwith a metal part, a lamp in the casing, a reflector in the lampcircuit, a movable cap on the casing, a

spring adapted to support and contact with the battery, and acircuit-closing switch adapted to normally connect the lamp with thebattery through the reflector and the spring, a metal support on thecasing. part, an insulating member on the support in which the reflectoris adapted to seat, and a spring retainer having a rim adapted to re-'ceive and retain a coil ofthe spring mounted in but insulated from thecap, said rim being adapted to 'form a contact for connection with theswitch.

6. Abattery hand lamp, comprising, a battery receiving casing providedwith an exterior end-fitting in the lamp circuit, an end cap mounted on.said fitting, and an element mounted in but insulated from said capconnected with the battery and adapted to contact with said fitting.

7. A battery hand lamp, comprising, a battery receiving casing providedwith an exterior end fitting in the lamp circuit, an end cap mounted onsaid fitting, an element mounted in but insulated from said cap, and aspring carried by said element and engaging the battery, said elementbeing adapted battery receiving casing provided with an exterior endfitting in the lamp circuit, an end cap mounted on said fitting, anelement mounted in but insulated from said cap and connected with thebattery, and a flange on said fitting adapted to contact with saidelement.

9. A battery hand lamp, comprising, a battery receiving casing providedwith an exterior end fitting in the lamp circuit, an end cap mounted onsaid fitting, an element mounted in but insulated from said cap, aspring carried by said element and engaging the battery, and a flange onsaid fitting adapted to contactwith said element.

10. In a battery ha'nd lamp having a battery-receiving casing providedwith a movable cap, a lamp in the casing, a spring in i connected with.the switch, means in said cap I adapted to connect said rim with saidspring, and means adapted upon moving said cap to disconnect said rim.

In testimony whereof I affix my signature this 31st day of March, 1920.1

ERNEST ALSCHULER.

